R2511-HP MSR Router Series IP Multicast Command Reference(V5)

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Default
The device does not check the Router-Alert option but passes all the IGMP messages that it received to the
upper layer protocol for processing.
Views
Public network IGMP view, VPN instance IGMP view
Default command level
2: System level
Examples
# Configure the router to discard IGMP messages that do not carry the Router-Alert option globally on the
public network.
<Sysname> system-view
[Sysname] igmp
[Sysname-igmp] require-router-alert
# Configure the router to discard IGMP messages that do not carry the Router-Alert option globally in
VPN instance mvpn.
<Sysname> system-view
[Sysname] igmp vpn-instance mvpn
[Sysname-igmp-mvpn] require-router-alert
Related commands
• igmp require-router-alert
• send-router-alert
reset igmp group
Use reset igmp group to remove the dynamic group entries of a specified IGMP group or all IGMP
groups.
Syntax
reset igmp [ all-instance | vpn-instance vpn-instance-name ] group { all | interface interface-type
interface-number { all | group-address [ mask { mask | mask-length } ] [ source-address [ mask { mask
| mask-length } ] ] } }
Views
User view
Default command level
2: System level
Parameters
all-instance: Specifies all MPLS L3VPNs.
vpn-instance vpn-instance-name: Specifies an MPLS L3VPN by its name, a case-sensitive string of 1 to 31
characters.
all: Specifies all interfaces (the first all) or all IGMP groups (the second all).
interface interface-type interface-number: Specifies an interface by its type and number.
group-address: Specifies a multicast group address in the range of 224.0.0.0 to 239.255.255.255.